When standing in a two block height, with a trap door over your head, opening the drop door above you will force your character to lay down on the block that it is standing on.
You have to stand directly below the hinge for this bug to be reproduced.
The way to get past the issue is to open the trap door, or walk off the block. Then your character will stand up normally.
Linked issues
Attachments
Comments 2
Thank you for your report!
We're tracking this issue as MC-147612, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as working as intended, which means this is not considered a bug and won't be fixed. Please do not leave a comment on the linked ticket.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – ✍️ Feedback and Suggestions – 📖 Game Wiki
-- I am a bot. This action was performed automatically! Please report any issues in Discord or Reddit
this is because you're under the collision box of the opened trapdoor